The class included in "classes.php3.inc" (see attached file),
can be used in calculation of simple stats and a histogram
distribution of an array of data.
Below is an example that uses this class.
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<BODY BGCOLOR="white">
<PRE>
<?php
require("./classes.php3.inc");
/* Sample test code */
/* create a medium sized array */
$vals = array(
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2,
1.5,2,3,4,0,3.2,0.1,0,0,5,3,2,3,4,1,2,4,5,1,3,2,4,5,2,3,4,1,2
);
/* create an instance w/o initialization */
$h = new Histogram;
/* do the calculation and print the results */
$h->calc($vals,6,"COOL Test");
$h->printStats();
$h->printBins();
/* access the result arrays directly*/
$result = $h->getBins();
echo "\n\nresult is of type: ".gettype($result)."\n";
while (list($key,$val) = each($result)) {
echo $key."\t".$val."\n";
}
$result = $h->getStats();
echo "\n\nresult is of type: ".gettype($result)."\n";
while (list($key,$val) = each($result)) {
echo $key."\t".$val."\n";
}
/* a new instance w/ initialization */
echo "\n\n============\n\n";
$k = new Histogram($vals,7,"Constructed histogram");
$k->printStats();
$k->printBins();
?>
</PRE>
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